Tire.



F. A. .ELLIS.

TIRE.

APPLIOATIOH FILED 211.26, 190a.

Patented Nov. 3, 1908.

n a I n n m I l n u hT/nlar. @A 292;

newJand useful Improvements in' Tires, of

' limits.

largement .s' is shown surrounded by a me FREDERICK ARTHUR ELLIS, OF LONDON. l llltirL AND.v

TIRE.

Specification oi Letters Patent.

Patented Nov. a, 1908..

Application and February 2a, 1908. Serial No. 417,788.

To all whom it may concern:

' Be it known that I, FREDERICK ARTHUR,

ELLIS, a subject of the King of Great Brit a1n.-res1d1ng at Kennin ton, in the county of Surrey, London, Eng and, have invented which the following is a specification. This inyention relates to improvements in and connected with the tires of automobiles 'and other vehicles. And in order that the said invention may be fully understood I will proceed to describe the same with the aid of the accompanying sheet of drawings in which Figure 1 is a cross section of a tire and rim constructed in accordance with the,.in- \cntion. the section being taken on line A-A, Fig. 52. rim and tire corresponding to Fig. 1, Figs. 3 and l partialsections showingniodifications of Fig. 1, and Fig. 5 a section taken on the line BB of Fig. 3.

According to my present invention, in order toincrease the efficiency of the resilient pneumatic chambers in tires, I provide in connection with the interior of such chambers one or more auxiliary expansible compartments or enlargements so constructed as to be capable of sustaining without und'ue distortion or expansion, the ordinary internal air, pressure of the pneumatic chamber ,of the tire under ordinary conditions, but

when a sudden jolt. blow or shock is imparted to the tire the said auxiliary compartment tem 'iorarily expandsand absorbs or neutralizes the effects of such jolt,- blow or shock.

For example the pneumatic chamber .7) of the tire may be provided with one such aux iliary compartment in the form of an indiarubber tee-branch or enlargement s, which. when thetireis in position, may extend. through ahole in the bottom of the trough of therini' a where it may be surrounded by a suitable metallic or other casing t. sutii cient space being provided within such casing to allow for the expansion of the indiarubber branch or enlargement 8 within safe In Figs. 3 and 5 the branch or en- Fig. 2 a side elevation of part of a tallic spiral spring a, and in Fig. 4; by spongy rubber or other suitable resihent ma terial v for the purpose of reinforcing its strength and securing its quick return to its normal size'when the; efi'ectof the jolt, blow on shock has ceased. Two enlargements are place in which m, m represent spring pins the outer ends of which engage with radial guide slots 12 in the inside of the rim (1, the

pins m being normally forced outwards by a spring )2. ll'hen it is desired to remove a segment the said pins are pressed inwards by means of suitable tools applied to their outer ends: through holes in the rim; and when it desired to place and secure asegment in position in the rim it is only necessary to press it radially into the rim so that the ends of the pins in are pressed inwards by the inclined planes 1' on the rim until they come opposite the slots n when the spring 7; forces the pins outwards so as to engage the latter in the slots, and the segment is thereby locked in place.

Claims-- 1. A pneumatic tire comprising an inflatable member having an expansible branch projecting from the interior face thereof, and a casing'surrounding such branch.

2. A pneumatic tire comprising'a plurality of expansible branches projecting from the interior face thereof, and means for preventing the expansion thereof under normal conditions, substantially as described.

A pneumatic tire comprising a plurality of expansible branches projecting from the interior face thereof, and means for limiting the expansion thereof said'means comprising a spring 0011 around each of said branches, substantially as described.

I11 testimony where-c I have signed my name to this specification in the presence of two subscribing witnesses. 

